US2009167368A1PendingUtilityA1

Pre-driver circuit having a post-boost circuit

Individually held — no corporate assignee on recordPriority: Dec 27, 2007Filed: Dec 27, 2007Published: Jul 2, 2009
Est. expiryDec 27, 2027(~1.4 yrs left)· nominal 20-yr term from priority
H03K 19/01721H03K 19/00361
37
PatentIndex Score
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Claims

Abstract

A pre-driver is provided that includes a pre-boost circuit and a post-boost circuit. The post-boost circuit may include a pulse generator circuit to provide a feedback to be used to control an output of the pre-driver.

Claims

exact text as granted — not AI-modified
1 . A pre-driver comprising:
 a first circuit to receive an input signal and to provide a pre-driver output on a pre-driver output node; and   a post-boost circuit to couple to the first circuit and to the pre-driver output node, the post-boost circuit including a plurality of transistors, a first pulse generator circuit to provide a first feedback signal as an input to one of the transistors and a second pulse generator circuit to provide a second feedback signal to another one of the transistors.   
   
   
       2 . The pre-driver of  claim 1 , wherein the first feedback signal to provide a boost pulse to the one transistor. 
   
   
       3 . The pre-driver of  claim 1 , wherein the first pulse generator circuit comprises a rising edge pulse generator. 
   
   
       4 . The pre-driver of  claim 1 , wherein the first pulse generator circuit comprises at least one inverter and an OR gate. 
   
   
       5 . (canceled) 
   
   
       6 . The pre-driver of  claim 1 , wherein the second pulse generator circuit comprises at least one inverter and an AND gate. 
   
   
       7 . The pre-driver of  claim 1 , wherein the first circuit comprises a base driver circuit or a pre-boost circuit having a plurality of transistors. 
   
   
       8 . A pre-driver comprising:
 a pre-boost circuit to couple to an input node; and   a post-boost circuit to couple to an output node, the post-boost circuit including at least one transistor, a first pulse generator circuit to provide a first feedback signal to the at least one transistor to control a pre-driver output at the output node and a second pulse generator circuit to provide a second feedback signal to further control the pre-driver output at the output node.   
   
   
       9 . The pre-driver of  claim 8 , wherein the first feedback signal to provide a boost pulse. 
   
   
       10 - 12 . (canceled) 
   
   
       13 . The pre-driver of  claim 8 , wherein the second feedback signal is to be applied to another transistor. 
   
   
       14 . The pre-driver of  claim 18 , wherein the second pulse generator circuit comprises a falling edge generator circuit. 
   
   
       15 . The pre-driver of  claim 8 , wherein the first pulse generator circuit comprises a rising edge pulse generator. 
   
   
       16 . A pre-driver comprising:
 a pre-boost circuit to couple to an input node; and   a post-boost circuit to couple to an output node, the post-boost circuit including a plurality of transistors, a first pulse generator circuit to provide a first feedback signal to a first one of the transistors and a second pulse generator circuit to provide a second feedback signal to a second one of the transistors, and the first feedback signal and the second feedback signal to control a pre-driver output at the output node.   
   
   
       17 . The pre-driver of  claim 16 , wherein the first feedback signal to provide a boost pulse. 
   
   
       18 . The pre-driver of  claim 16 , wherein the first pulse generator circuit comprises a rising edge pulse generator. 
   
   
       19 . The pre-driver of  claim 16 , wherein the second pulse generator circuit comprises a falling edge generator circuit.

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